US STOCKS-Wall St set for flat open; Yellen, data on tap By: Reuters: Company News February 25, 2015 at 08:59 AM EST * Futures off: Dow 2 pts, S&P 2.5 pts, Nasdaq 8.75 pts (Adds quote, Target earnings, updates prices) Read More >> Related Stocks: Hewlett-Packard Lowe's Companies Target Corp